Installing the sensor head 25
Analog 4–20 mA outputs
The 4–20 mA output range can be configured using the web interface. A value higher than 21 mA is used
to indicate a detector error.
WARNING
Use only shielded cables for wiring the 4–20 mA outputs interface.
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Figure 7 Wiring analog 4–20 mA outputs
4–20 mA Output Shield
Terminal (J2) Description Terminal (J3) Description
1 Hydrogen + 1 Earth GND
2 Hydrogen – 2 Earth GND
3 Moisture +
4 Moisture –